Re: faster & public domain MD5 implementation

Not entirely correct. As I pointed out in the other thread, not all countries have the concept of transferrable copyright. Therefor, a note should be added that explicitly states that everyone is free to use it without permission, fees etc. Much like a BSD or MIT license, but without the additional conditions of preserving copyright notices. David Am 21.12.2007 um 14:29 schrieb Martin Alterisio:

No, public domain isn't recognized by copyright law as a copyright notice. An extra line should be added that says something like "no copyright is claimed", and attach a year range where the copyright is in effect (since copyright expires, if I remember correctly). Anyway, the keyword here is "copyright", which is recognized internationally (which means you should use this word even if writing the copyright notice in another language). Without a copyright notice, the code isn't apt for distribution. The author could claim that he did not give his consent for public distribution and that the code was an in-house development. Anyway, it's too complicate and I understand very little. To get the real facts here, you should talk to your lawyer. 2007/12/21, Alexey Zakhlestin <indeyets@gmail.com>:

isn't "public domain" specific enough? On 12/21/07, Martin Alterisio <malterisio777@gmail.com> wrote:

2007/12/20, Stanislav Malyshev <stas@zend.com>:

Attached is a quick patch for PHP 5.2.5 that replaces RSA's

copyrighted

implementation of MD5 with my public domain one:

http://cvsweb.openwall.com/cgi/cvsweb.cgi/Owl/packages/popa3d/popa3d/md5/

Tried that one and it is about 30% faster indeed (on md5-only

benchmark,

32-bit Linux on AMD Opteron. Anybody objects to accepting this?

Just one, but is a mere formality. I didn't see any copyright notice on

the

code nor a licensing document attached. I have not much of the legal mumbo-jumbo comprehension, so, correct me if I'm wrong, shouldn't

external

code that's to be included in the php codebase meet these legal

formalities

so it doesn't become a liability? That's all. Best Regards, Martin Alterisio PS: Does anyone knows if using a nickname for authorship is considered legally valid? I believe it might be valid, think about writers that use such pseudonyms, but I'm not sure...

-- Alexey Zakhlestin http://blog.milkfarmsoft.com/